How to use the nvchecker.__version__ function in nvchecker

#!/usr/bin/env python3

from setuptools import setup, find_packages
import nvchecker

# The complex upload command:
# rm -rf dist && python setup.py sdist && twine check dist/* && twine upload -s dist/*

setup(
  name = 'nvchecker',
  version = nvchecker.__version__,
  author = 'lilydjwg',
  author_email = 'lilydjwg@gmail.com',
  description = 'New version checker for software',
  license = 'MIT',
  keywords = 'new version build check',
  url = 'https://github.com/lilydjwg/nvchecker',
  long_description = open('README.rst', encoding='utf-8').read(),
  long_description_content_type = 'text/x-rst',
  platforms = 'any',
  zip_safe = False,

  packages = find_packages(exclude=["tests"]),
  install_requires = ['setuptools', 'structlog', 'tornado>=6', 'pycurl'],
  extras_require = {
    'vercmp': ['pyalpm'],
  },

# MIT licensed
# Copyright (c) 2019 lilydjwg , et al.

from .. import __version__

DEFAULT_USER_AGENT = 'lilydjwg/nvchecker %s' % __version__

structlog.processors.format_exc_info,
      slogconf.json_renderer,
    ])

  if logger_factory is None:
    logfile = args.json_log_fd or sys.stdout
    logger_factory = structlog.PrintLoggerFactory(file=logfile)

  structlog.configure(
    processors = processors,
    logger_factory = logger_factory,
  )

  if args.version:
    progname = os.path.basename(sys.argv[0])
    print('%s v%s' % (progname, __version__))
    return True